GHSA-8cv5-p934-3hwp
Denial of service in fast-csv
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | fast-csv | < 4.3.6 | 4.3.6 |
| npm | @fast-csv/parse | < 4.3.6 | 4.3.6 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
Possible ReDoS (Regular Expression Denial of Service) when using `ignoreEmpty` option when parsing.
### Patches
This has been patched in `v4.3.6`
### Workarounds
You will only be affected by this if you use the `ignoreEmpty` parsing option. If you do use this option it is recommended that you upgrade to the latest version `v4.3.6`
### References
This vulnerability was found using a [CodeQL](https://securitylab.github.com/tools/codeql) query which identified `EMPTY_ROW_REGEXP` regular expression as vulnerable.
[Link to query run](https://lgtm.com/query/8609731774537641779/).
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [fast-csv](https://github.com/C2FO/fast-csv)
References
External links from the advisory. They lead to third-party sites.
- https://github.com/C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp
- https://nvd.nist.gov/vuln/detail/CVE-2020-26256
- https://github.com/C2FO/fast-csv/issues/540
- https://github.com/C2FO/fast-csv/commit/4bbd39f26a8cd7382151ab4f5fb102234b2f829e
- https://github.com/C2FO/fast-csv
- https://lgtm.com/query/8609731774537641779
- https://www.npmjs.com/advisories/1587
- https://www.npmjs.com/advisories/1588
- https://www.npmjs.com/package/@fast-csv/parse
- https://www.npmjs.com/package/fast-csv